Specifications

Analog Output Modules

310

31007715 6/2008

The connections on pin 1 and pin 6 are optional, and using these pins will defeat the

built-in isolation between the analog portion of the module and the island’s sensor

bus. No connections are made on pins 3 and 5 of either connector:

The analog returns (pin 4) for each channel are internally connected—therefore

there is no channel-to-channel isolation.

Sample

Wiring Diagrams

The following field wiring example shows how two isolated single-ended analog

actuators can be wired to the STB ACO 1210 module. Two separate external power

supplies are needed to make sure that the proper current is delivered to each

actuator:

2 outputs to actuator 1 (top) and actuator 2 (bottom)

4 field power returns from actuator 1 (top) and actuator 2 (bottom)

Pin Top Connections Bottom Connections

1 +24 VDC from actuator bus for field

device accessories

+24 VDC from actuator bus for field

device accessories

2 output to actuator 1 output to actuator 2

3 no connection no connection

4 analog output return analog output return

5 no connection no connection

6 field power return (to the module) field power return (to the module)

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